Effect of short-term water exposure on the mechanical properties of halloysite nanotube-multi layer graphene reinforced polyester nanocomposites

Saharudin, Mohd, Atif, Rasheed and Inam, Fawad (2017) Effect of short-term water exposure on the mechanical properties of halloysite nanotube-multi layer graphene reinforced polyester nanocomposites. Polymers, 9 (1). p. 27. ISSN 2073-4360

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Official URL: http://dx.doi.org/10.3390/polym9010027

Abstract

The influence of short-term water absorption on the mechanical properties of halloysite nanotubes-multi layer graphene reinforced polyester hybrid nanocomposites has been investigated. The addition of nano-fillers significantly increased the flexural strength, tensile strength, and impact strength in dry and wet conditions. After short-term water exposure, the maximum microhardness, tensile, flexural and impact toughness values were observed at 0.1 wt % multi-layer graphene (MLG). The microhardness increased up to 50.3%, tensile strength increased up to 40% and flexural strength increased up to 44%. Compared to dry samples, the fracture toughness and surface roughness of all types of produced nanocomposites were increased that may be attributed to the plasticization effect. Scanning electron microscopy revealed that the main failure mechanism is caused by the weakening of the nano-filler-matrix interface induced by water absorption. It was further observed that synergistic effects were not effective at a concentration of 0.1 wt % to produce considerable improvement in the mechanical properties of the produced hybrid nanocomposites.

Item Type: Article
Uncontrolled Keywords: nanocomposites; halloysite nanotubes; multi-layer graphene; water absorption; mechanical properties
Subjects: F200 Materials Science
H300 Mechanical Engineering
J400 Polymers and Textiles
J500 Materials Technology not otherwise specified
J600 Maritime Technology
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Fawad Inam
Date Deposited: 16 Jan 2017 16:42
Last Modified: 30 Jun 2017 05:47
URI: http://nrl.northumbria.ac.uk/id/eprint/29149

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